Specifically Mycoplasma synoviae is what we theorize we're dealing with. Can't afford the vet since it's just one chick affected. We had a chick (1 month old) go off her legs (lame) with red/pink, swollen joints about a week ago and treated her for a slipped tendon but that was not it - she got rattled, raspy breathing and a little fluid in the nostrils and that's when we suspected MS. We did some research and found that erythromycin was one antibiotic that worked, so we got some at Petsmart in the bird section and started treating her. She didn't get better nor worse. In the last few days she's gotten a little worse - neck starting to twist. For the last two days we've been absolutely amazed that she persists to live! She is not in obvious pain, but is and has been unable to move for a week now. She sleeps all day and only wakes to eat, drink, poop and then back to sleep again. We decided last night to back up her efforts to live and really put the fight on for her. We found a different article recommending tetracycline and Petsmart has that too so we just got some. We will post the results. Apparently the best thing for mycoplasma infections is Denagard, but for some unknown reason it's like trying to get your hands on gold! We called over 20 places looking for it and finally gave up and had to order it online with 2-3 day shipping. We hope the tetracycline will hold her off until then. Basically, looking to help others. If we have success in one of these medications then maybe others can have an answer for their MS infections other than "cull." That is fine for some, but others wish to try treating it and this is for them, hopefully. So, we will wait and see what happens. She just today developed the green-tinge to her poop. The poop itself is still brown but the liquid off it is green. That means she's in the late stages of the infection and will probably not last long if the tetra doesn't help. Lesson one is that the erythromycin did nothing to stop the MS. I may have slowed things down a bit, but that's hard to tell. It's certainly no cure in our case. Lesson learned. On to the next trial! *sigh I will post our results in the end so others have something to read up on the topic. One of my frustrations has been the "dead end" threads that never get updated with whether a certain drug worked for a certain disease or not. Mycoplasma is one of those for sure. Oksie, off for now, wish us luck!